Module observation 

Agent-readable page snapshot (observation.json).

Mechanical projection of the accessibility tree + DOM geometry per architecture.md §8. Disallowed: intent labels like “login”, “captcha”, importance ranking. This module owns the schema and the no-intent-label invariant.

Structs

BBox

Form

Frame

Node

Observation

ObservationTruncation

Viewport

Constants

DISALLOWED_LABELS

Disallowed substrings in any string field of an Observation. Tests use this to enforce design.md §"Observation is mechanical, not interpretive".

OBSERVATION_SCHEMA_VERSION

Functions

capture

Capture an Observation from a CDP session. Projects the accessibility tree + page title + viewport into the mechanical schema; never adds intent labels or importance ranks (see DISALLOWED_LABELS).

write